I have used Ronaldinho 91, maradona 91 and R90 up top with messi in 442. All the players are only used in WL and DR

Ronaldinho 91 had the best goal ratio for me, with 51 goals in 39 games. But I actually didn't feel anything special about the card. Had it in fut18, and he felt much better in that game in my opinion.
Maradona, only used him for 15 WL games with 16 goals, but could feel it didn't work with him and messi up top. He did had a great left foot, but wasn't more than what messi could bring to the game
Having R90 atm, even though he doesn't have a positive goal ratio atm with 28 goals in 30 games, he does feel great, he just feels like he has that special touch. But he can't finesse for the life of him, it's really horrible.

So R90 is fun, but as you can see ronaldinho was more effective for me